How to build for Freebsd?

[MickeMannen]

Hi!

I have a VMware installation of freebsd 11 and i am trying to build chinadns for my opnsense router.
When i run the command shown on the main page: ./configure.ac && make src/chinadns -m -c chnroute.txt
i get a syntax error message: ./configure.ac: 4: Syntax error: word unexpected (expecting ")")

Anyone that knows what is wrong or where i can download a bin for freebsd/opnsense of chinadns?